National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Hyannis, Barnstable Municipal-Boardman Airport (KHYA)

Lat: 41.67°NLon: 70.27°WElev: 49ft.

Fair

35°F

2°C

Humidity 52%
Wind Speed NW 8 G 20 mph
Barometer 30.25 in (1024.3 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill28°F (-2°C)
Last update 14 Mar 11:56 pm EDT
Extended Forecast for

South Dennis MA

High Wind Watch March 16, 05:00pm until March 17, 06:00am
Click here for hazard details and duration
High Wind Watch

  • Overnight

    Overnight: Mostly clear, with a low around 31. Northwest wind 8 to 10 mph, with gusts as high as 24 mph.

    Low: 31 °F

    Mostly Clear

  • Sunday

    Sunday: Increasing clouds, with a high near 43. North wind 6 to 8 mph becoming southeast in the afternoon.

    High: 43 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: A chance of rain, mainly after 5am. Increasing clouds, with a low around 35. Southeast wind 9 to 15 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 35 °F

    Partly Cloudy
    then Chance
    Rain

  • Monday

    Monday: Rain and thunderstorms likely, then rain and possibly a thunderstorm after 8am. Patchy fog. High near 55. South wind 14 to 17 mph, with gusts as high as 37 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 55 °F

    Rain and
    Patchy Fog

  • Monday Night

    Monday Night: Rain. Areas of fog before 9pm. Low around 37. Breezy, with a south wind 14 to 22 mph, with gusts as high as 60 mph. Chance of precipitation is 100%.

    Low: 37 °F

    Rain and
    Areas Fog

  • Tuesday

    Tuesday: Rain likely, mainly before 8am. Partly sunny, with a high near 44. Southwest wind 11 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.

    High: 44 °F

    Rain Likely
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 22. West wind around 10 mph, with gusts as high as 24 mph.

    Low: 22 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 36. Northwest wind 5 to 7 mph.

    High: 36 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 27. Light south wind.

    Low: 27 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 31. Northwest wind 8 to 10 mph, with gusts as high as 24 mph.
Sunday
Increasing clouds, with a high near 43. North wind 6 to 8 mph becoming southeast in the afternoon.
Sunday Night
A chance of rain, mainly after 5am. Increasing clouds, with a low around 35. Southeast wind 9 to 15 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Rain and thunderstorms likely, then rain and possibly a thunderstorm after 8am. Patchy fog. High near 55. South wind 14 to 17 mph, with gusts as high as 37 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Monday Night
Rain. Areas of fog before 9pm. Low around 37. Breezy, with a south wind 14 to 22 mph, with gusts as high as 60 mph. Chance of precipitation is 100%.
Tuesday
Rain likely, mainly before 8am. Partly sunny, with a high near 44. Southwest wind 11 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.
Tuesday Night
Mostly clear, with a low around 22. West wind around 10 mph, with gusts as high as 24 mph.
Wednesday
Sunny, with a high near 36. Northwest wind 5 to 7 mph.
Wednesday Night
Mostly cloudy, with a low around 27. Light south wind.
Thursday
Partly sunny, with a high near 41. South wind 3 to 8 mph.
Thursday Night
Mostly cloudy, with a low around 31. Light southeast wind.
Friday
Mostly sunny, with a high near 43. Northwest wind 5 to 7 mph becoming east in the afternoon.
Friday Night
Partly cloudy, with a low around 32. South wind around 6 mph.
Saturday
A chance of rain. Mostly cloudy, with a high near 45. South wind 8 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 50%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
South Dennis MA
 41.69°N 70.16°W (Elev. 7 ft)
Last Update:
12:40 am EDT Mar 15, 2026
Forecast Valid:
12am EDT Mar 15, 2026-6pm EDT Mar 21, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation